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Debian: CVE-2021-47088: linux -- security update

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Debian: CVE-2021-47088: linux -- security update

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
03/04/2024
Created
07/31/2024
Added
07/30/2024
Modified
01/30/2025

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'.However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock.This can result in a use_after_free bug.This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2021-47088
  • CVE - 2021-47088
  • 查看数 706
  • 已创建
  • 最后回复

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